Mini CRT Oscilloscope For Electronic Monitoring, Green Phosphor Cathode Ray Tube With Electrostatic Focus And Deflection, NOS Display Tube, Round Screen, Perfect For Visualizing Radio Signals And Tech Diagnostics
✔️ Electrostatic focus & deflection, 500-800V second/anode, 6.3V heater
The compact NOS CRT oscilloscope tube is a vintage display component designed for hands-on electronics work, radio signal testing, and diagnostics on lab benches. It features a round green phosphor screen and electrostatic focus for clear waveform visualization.
✅ Heater voltage: 6.3V, current 0.54-0.66A
✅ 2nd anode voltage: 500V (range 500-800V)
✅ 1st anode focus: 0-50V
✅ Cut-off voltage: -90 to -30V
✅ Tube diameter: 33.5 mm; length: 115 mm
✅ Control grid voltage: -125 to 0V
✅ Impedance (control grid): ≤1.5 MΩ
✅ Deflection plate impedance (50 Hz): ≤2 MΩ
✅ Voltage between deflection plates and 2nd anode: -450 to 450V
✅ Operation note: simultaneous max values not permitted
💡 What is a CRT display tube used for? CRT tubes are handy for hand-on signal visualization in labs and for teaching waveform behavior.
- Handy for radio signal checks and RF circuit prototyping
- Visual feedback on beam focus and deflection in analog gear
- Educational reference for CRT operation and waveform interpretation